YanmarYanmar 6AY Series

Yanmar 6AY Series

Yanmar 6AY Major Overhaul BOM (10,000hr Service)

Overhaul Kits

Nota del Ingeniero: Esta lista incluye números de parte OEM validados para revisiones de 10,000h (Superior) y 20,000h (Mayor). Las cantidades son por unidad de motor individual.

Sistema	Nombre de Parte	N/P OEM	Cant.	Notas
Power Pack	Cylinder Liner Assembly (6-pc set)	748620-01901-C	1	Silicard treatment \| Replace @ 8,000-10,000 hrs
Power Pack	Piston Assembly (complete)	129001-02931	6	Oil-cooled via connecting rod \| 20.379L displacement
Power Pack	Piston Ring Set (Teikoku)	129901-01188	1	Chrome-plated compression + oil ring \| Replace @ 5,000-8,000 hrs
Power Pack	Piston Pin/Gudgeon Pin	129050-11130	6	Forged steel \| Replace with piston assembly
Power Pack	Cylinder Head Gasket (individual)	150633-01340	6	T=1.0mm thickness \| Multi-layer steel
Cylinder Head	Intake Valve Assembly	148620-11110	12	Forged steel \| Replace @ 10,000-12,000 hrs
Cylinder Head	Exhaust Valve Assembly	148620-11180	12	High-temp alloy \| Replace @ 8,000-10,000 hrs
Cylinder Head	Valve Seat (Intake)	148620-11040	12	Cast iron insert \| Precision ground
Cylinder Head	Valve Seat (Exhaust, water-cooled)	148620-11060	12	Water-cooled design \| Higher cost, critical thermal
Cylinder Head	Valve Guide (Intake)	124060-11800	12	Bronze/steel \| Replace @ 10,000-15,000 hrs
Cylinder Head	Valve Guide (Exhaust)	129150-11810	12	High-temp steel \| Premium durability
Cylinder Head	Valve Spring Set	129151-12310	24	Stainless steel \| Replace as set during overhaul
Cylinder Head	Rocker Arm Assembly	129160-12120	12	Forged steel rocker \| Precision fit required
Fuel System	Fuel Injector Nozzle (YDLG-155T387)	YDLG-155T387 BZ6G	6	155mm marine-spec nozzle \| Replace @ 2,000-3,000 hrs
Fuel System	Fuel Feed Pump (mechanical)	127616-53000	1	Gear-driven \| Replace if pressure drops
Fuel System	High-Pressure Fuel Pipe Set	0CF50-M00150	1	O-ring seals + thrust bushings \| Inspect annually
Fuel System	Fuel Filter Primary (Donaldson)	DF5040	2	Duplex system \| Replace @ 500 hrs
Fuel System	Fuel Filter Secondary	DF1040	2	Fine mesh high-pressure side
Cooling	Seawater Pump Impeller Kit	124223-42092	1	Flex-blade rubber \| Replace @ 2,000-3,000 hrs
Cooling	Seawater Pump Mechanical Seal	124223-42120	1	Carbon/SS lip seal \| Replace @ 3,000-5,000 hrs
Cooling	Seawater Pump O-Ring Set	124223-42130	1	Viton salt-water resistant
Cooling	Thermostat Assembly (65-80°C)	104211-49000	1	Wax-pellet type \| Replace @ 5,000-8,000 hrs
Cooling	Thermostat Gasket	104211-49160	1	Rubber housing seal
Cooling	Oil Cooler Core (multi-plate)	126618-44020	1	Aluminum plate-fin \| Flush annually
Filtration	Oil Filter (Donaldson/Fleetguard)	LF695	3	Replace @ 500 hrs or 6 months
Filtration	Oil Strainer (duplex)	127510-04030	1	Notch-wire type \| Clean @ 500 hrs
Filtration	Air Filter (dry-type)	AF25022	1	Donaldson/Fleetguard \| Replace @ 1,000 hrs
Lubrication	Main Bearing Set (Taiho, 7-pc)	129001-02931	1	Precision toleranced \| Replace @ 8,000-10,000 hrs
Lubrication	Con-Rod Bearing Set (Taiho)	129051-02950	1	6-piece set \| Replace with main bearings
Lubrication	Thrust Bearing Set	129060-02900	1	Prevents crankshaft end-float
Lubrication	Connecting Rod Bolt Set	129151-12220	1	High-tensile \| One-time use, replace every overhaul
Turbocharger	Turbocharger Assembly (Garrett/IHI)	126600-18000	1	Replace if blade erosion/surge detected
Turbocharger	Turbo Oil Supply Line	126601-18010	1	Critical for bearing longevity
Turbocharger	Turbo Oil Return Line	126601-18020	1	Flush during major overhaul
Turbocharger	Turbo Mounting Gasket Set	126602-18100	1	High-temp rated
Turbocharger	Intercooler Core Assembly	126618-44040	1	Tube-and-fin aluminum \| Clean quarterly
Anodes	Zinc Anode Kit (5-piece)	119773-92600	1	Engine + cooler + transmission protection \| Replace annually
Anodes	Pencil Anode (standard 20×30mm)	27210-200300	4	M8 thread \| Replace @ 2,000-3,000 hrs
Anodes	Anode Gasket/Packing Ring	123210-09310	6	Replace with every anode
Gaskets	Complete Overhaul Gasket Set	750633-02010	1	Head, valve cover, crankcase, cooler gaskets \| Mandatory @ 10,000 hrs
Gaskets	Oil Pan Gasket	147630-01620	1	Rubber sump seal
Gaskets	Valve Cover Gasket Set (6-pc)	121550-11350	1	Silicone rubber \| Replace @ 500 hrs service
Gaskets	O-Ring Kit (misc seals)	150604-00001	1	Viton/nitrile assortment \| Essential for overhaul
Electrical	Starter Motor (24V 7.0kW)	127560-77010	1	Marine-duty rated \| Replace @ 8,000-10,000 hrs
Electrical	Alternator (24V, high-amp)	128670-77100	1	Marine-rated \| Service @ bearing failure
Electrical	Alternator Belt	128670-77350E	1	Multi-groove serpentine \| Replace @ 5,000 hrs